from django.shortcuts import render,get_object_or_404
from django.http import HttpResponse,HttpResponseRedirect
from django.urls import reverse
from django.views import generic

from .models import Question,Choice

# Create your views here.
class IndexView(generic.ListView):
    template_name = 'polls/index.html'
    context_object_name = 'latest_question_list'

    def get_queryset(self):
        """Return the last five published questions."""
        return Question.objects.order_by('-pub_date')[:5]


class DetailView(generic.DetailView):
    model = Question
    template_name = 'polls/detail.html'


class ResultsView(generic.DetailView):
    model = Question
    template_name = 'polls/results.html'


def vote(request, question_id):
    ...  # same as above, no changes needed.









# def index(request):
#     latest_question_list = Question.objects.order_by('-pub_date')[:5]
#     context = {
#         'latest_question_list':latest_question_list
#     }
#     return render(request,'polls/index.html',context)
#
#
#
# def detail(request,question_id):
#
#     question = get_object_or_404(Question,pk=question_id)
#
#     return render(request,'polls/detail.html',{'question':question})
#
#
#
# def results(request, question_id):
#     question = get_object_or_404(Question, pk=question_id)
#     return render(request, 'polls/results.html', {'question': question})
#
#
#
# def vote(request,question_id):
#     question = get_object_or_404(Question,pk=question_id)
#     try:
#         selected_choice = question.choice_set.get(pk=request.POST['choice'])
#     except (KeyError, Choice.DoesNotExist):
#         # Redisplay the question voting form.
#         return render(request, 'polls/detail.html', {
#             'question': question,
#             'error_message': "You didn't select a choice.",
#         })
#     else:
#         selected_choice.votes += 1
#         selected_choice.save()
#         # Always return an HttpResponseRedirect after successfully dealing
#         # with POST data. This prevents data from being posted twice if a
#         # user hits the Back button.
#         return HttpResponseRedirect(reverse('polls:results', args=(question.id,)))